Brian Urlacher could return from a hamstring injury Sunday in the Bears' final game of the season. (AP Photo)

Brian Urlacher was happy to see how the Chicago Bears played defense without him in Sunday's 28-13 win at Arizona. He was caught by FOX Sports' cameras often while cheering on his teammates, and now there's a better chance he will return from a hamstring injury this week.

After Lovie Smith admitted to reporters following the Cardinals game that Urlacher was testing out the hamstring before the game, he revealed Urlacher is "making a lot of improvement."

Nick Roach has filled in well in the middle, and it helps to be flanked by the Bears' best linebacker and overall defender, Lance Briggs. Still, Urlacher's passion can provide a timely boost in Detroit with their playoff hopes on the line.

If Chicago beats Detroit, and Green Bay wins at Minnesota in Week 17, the Bears will get the NFC's second wild card.